torkelson



R. T. TORKELSON SPOKE CLAMP FOR NON-SKID CHAINS.

APPUCATION FILED MAR. 12. 19H).

Patented May 20, 1919;

2 SHEETS-SHEET I IN V EN TOR. .ZEZ 0z%e/m/z A TTORN E YJ R. T.TORKELSON. SPOKE CLAMP FORVNON-SKID CHAINS.

APPLICATION man MAR. 12. 19:9.

1,304,122. Patented May 20, 1919.

v H q UNITED STATES PATENT OFFICE.

REINHAJRD T. TORKELSOIL OF WORCESTER, MASSACHUSETTS, ASSIGNOR-TO FREDIVER JOHNSON, 0F FITCHBURG, MASSACHUSETTS.

SPOKE-CLAMP FOR NON-SKID CHAINS.

Specification of Letters Patent.

Patented May 20, 1919.

Application filed March 12, 1919. Serial No. 282,129. I

To all whom it may concern Be it known that I, REINHARD T. TORKEL- SON,a citizen of the United-States, residing at IVorcester, in the county ofWorcester and State of Massachusetts, have invented a new and usefulSpoke-Clamp for Non-Skid Chains, of which the following is aspecification.

The object of this invention is to provide a new and improved spokeclamp for nonskid chains, which can be very readily applied in positionand which can be very easily adjusted. Y Y

The invention is shown in the accompanying two sheets of drawings, inwhich Figure 1 is a cross sectional elevation of part of the rim of awheel showing one of my clamps in place on the spoke;

Fig. 2 is a section taken on the line 22 of Fig. 1;

Fig. 3 is an end elevation;

Fig. 4 is a view similar to Fig. 2 illustrating a different way theclamp may be applied in position;

Fig. 5 is an end elevation, and

Fig. 6 is a bottom view of one of the corner pieces;

Fig. 7 is an end elevation, and

Fig. 8 is a bottom view of one of the grooved washers;

Fig. 9 is a detail of the clamping bolt;

Fig. 10 is a view similar to Fig. 2 illustrating a modification;

Fig. 11 is a side elevation of said modification, and

Fig. 12 is an end elevation of said modification.

It is customary on heavy wheels, such as are employed on trucks, to usea number of non-skid chains, say six or seven in number, attached attheir ends to the spokes of the wheel.

My invention relates particularly to an improved spoke clamp to whichthe ends of one of the non-skid chains can be attached.

The device consists essentially of four corner pieces preferablygrooved, two U- shaped clamp bars, and clamping means such as bolts andnuts, the parts being arranged so that when the clamp is placedinposition, the U-shaped clamp bars can be adjusted in and out on theclamp, and the clamp can be adjusted up and down on the spoke and theparts rigidly held in adjusted position by tightening the nuts.

Referring to the drawings and in detail, A designates one of the fourcorner pieces, the same being somewhat F-shaped in cross section andhaving two grooves a/a across its back face and having a hole atherethrough.

B designates one of the U-shaped clamp bars. These preferably are madeout of heavy wire bent to assume the shape shown.

In the plan shown in the first eight figures of the drawings, the cornerpieces are arranged to come next to the spoke and the clamp bars arearranged outside of the same. The clamping means provided in this planconsists of four washers C having grooves c0, bolts D having shoulders03 square in cross section near their heads, and nuts E.

The clamp is placed in position on the spoke, as shown in the drawings.With the nuts lightly adjusted, the clamp bars B are pushed in or pulledout to come at any desired relation relatively to the rim of the wheel,and the clamp is adjusted up and down on the spoke to tighten the chainas mush as desired. When the clamp is in the desired adjusted position,the same is rigidly held in position simply by tightening the nuts.

The clamp may be applied so that the clamp bars come at right angles tothe plane of the wheel as illustrated in Fig. 2, or so that they maystand parallel therewith as illustrated in Fig. 4.

In placing the parts in position on the spoke, they are preferablyarranged so that the nuts will come on the same side thereof forconvenience.

In the modification shown in Figs. 10, 11 and 12, the corner pieces Ahave the grooves cfi-a on their inner sides, and the clamp bars B fit inthese grooves. The holes a -a in the corner pieces are made square oroblong in shape, as shown in Fig. 11 where the head of one of the boltsis indicated as removed.

This modified clamp is applied and adjusted in the same manner as thepreviously described structure. This last described form of the deviceis somewhat cheaper to manufacture and is better adapted for somelocations, as the four grooved washers are not needed.

The details and arrangements herein shown and described may be greatlyvaried by a skilled mechanic without departing from the scope of myinvention as expressed in the claims.

Having thus fully described my invention, what I claim is- 1. A clampfor non-skid chains, consisting of corner pieces, two Ll-shaped clampbars, and means for clamping these parts on the spoke of a wheel.

2. A clamp for non-skid chains, consisting of four grooved cornerpieces, two U- shaped clamp bars engaged thereby, and means for clampingthe parts in position on the spoke of a wheel.

3. A clamp for non-skid chains, consisting of tour grooved cornerpieces, two U- shaped clamp bars fitted thereto, two bolts extendingthrough the corner pieces, and nuts carried by said bolts, whereby saidnuts will act to clamp the corner pieces in position on the spoke of awheel and the U- shaped clamp bars rigidly to the corner pleces.

A. A clamp for non-skid chains, consisting of four grooved cornerpieces, two U shaped clamp bars, four grooved washers, and two boltsfitting through the parts and having nuts for securing the clamp inadjusted position on the spoke of a wheel.

5. A clamp for non-skid chains, consisting of four grooved cornerpieces, two U-shaped clamp bars, four grooved washers with square holesthrough the same, two bolts Wlth square sectioned shoulders under theirheads, and two nuts, the parts being arranged so that by tightening thenuts the clamp bars will be rigidly secured to the corner pieces and theclamp will be held in adjusted position on the spoke of a wheel.

In testimony whereof I, have hereunto affixed my signature.

REINHARD T. TORKEDSON.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents. Washington, D. G.

